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photoelectric relay |
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photoelectric relay [¦fōd·ō·i′lek·trik ′rē‚lā] (electronics) A relay combined with a phototube and amplifier, arranged so changes in incident light on the phototube make the relay contacts open or close. Also known as light relay. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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